Apparatus for feeding kilns.



R. HOEHNE.

APPARATUS FOR FEEDING KILNS.

APPLICATION FILED MAY 3, 1909. 951,91 1, Patented Mar. 15, 1910.

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' R. 1101111111:. APPARATUS POR PEBDING KILN S. APPLICATION FILED MAY 3. 1909. 951,91 1 Patented Mar.15,1910.

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/ WM Rz'c Waff/0 @fm e R. HOEHNE. APPARATUS POR PBBDING KILNS. APPLIOATION FILED MAY s, 1909.

951,91 1 Patented Mar. 15,1910. '1 SHEETS-SHEET s.

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ANDREW n. GRAHAM co. PnuTo-LIYNOGRAPNERS. wAsmNGTorg, D. C.

R. HOEHNE.

APPARATUS FOR PEEDING KILNS. APPLICATION FILED MAY 3. 1909.

951 91 l Patented Mar. 15, 1910.

'I SHEETS-SHEET 5.

R. HOEHNE.

APPARATUS FOR PEBDING KILNS.

APPLIUATION FILED MAY 3. 1909.

951,91 1- Patented Mar. 15,1910. e t J5. 7 SHEETS-.SHEET e.

@f1 @MM 5y mf IR. HoBH APPARATUS FOR FEEDING KILNS.

APPLICATION FILED MAY 3, 1909.

Patentled Mar. 15, 1910.

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VUNITED STATES PATENT OFFICE.

RICHARD I-IOEHNE, OF CHICAGO, ILLINOIS.

APPARATUS FOR FEEDING: KILNS.

To all whom it may concern:

Be it known that I, RICHARD HOEHNE, a subject of the Emperor of Germany, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Apparatus for Feeding Kilns, of which the following is a specicaton.

My invention relates to apparatus for 1 feeding kilns and its object is to provide a simple and effective feeding apparatus for continuously supplying a series of kilns with coal or other fuel. I attain this object by the mechanism illustrated in the accompanying drawing in which- Figure 1 is a section through two kilns showing the feeding apparatus in elevation. Fig'. 2, a partial top plan view of the feeding apparatus and kilns. Fig. 3, a partial side elevation of the kilns and feeding apparatus. Fig. 4, an enlarged plan view of mechanism employed for operating trap mechanism which supplies the coal to the dierent kilns. Fig. 5, an elevation of the mechanism shown in Fig. 4. Fig. 6, a partial section on line U-U of Fig. 5. Fig. 7, a section on line VV of Fig. 6, Fig. 8, a section on line TvV--IV of Fig. 6, Fig. 9, a section on line X-X of Fig. 5, looking in the direction of arrows aa. Fig. 10, a section on line X-X of Fig. 5, looking in the direction of arrows -b. Fig. 11, a face view of a plate employed in the trap operating mechanism, Fig. 12, a partial section through the rocking lever employed in the trap operating mechanism, Fig. 13, an enlarged section through the kiln supplying chutes, Fig. 14, an enlarged section through the valve in the kiln supplying chutes; Fig. 15, a section on line Y-Y of Fig. 14 and Fig. 16, an enlarged longitudinal section through the screw conveyer and trap mechanism employed for supplying coal to the kiln chutes.

Similar numerals refer to similar parts through out the several views.

Reference numeral 1 refers to a well or pit adapted to receive the coal or other fuel for the kilns and which may be continuously supplied with fuel in any convenient manner. From the pit 1 a bucket-chain elevator 2 leads to and discharges into a hopper 3, which in turn discharges into the screw conveyer tube 4. The tube 4 contains a screw conveyer 5 for feeding the fuel through'the tube 4. At its other end tube 4 communicates with a cross tube 6 which in turn com- Specicaton of Letters Patent.

Application filed May 3, 1909.

Patented Mar. 15, 1910. serial No. 493,764.

municates with a tube 7 parallel with tube 4. Tube 7 communicates with a chute 8 which is adapted to discharge any fuel from tube 7. The elevator 2 is operated from an electric motor 9 or other suitable source of power. A belt 10 connects motor 9 with shaft 11, which in turn is connected with shaft 13 by means of beveled gears 12, and shaft 13 is connected by means of belt 14 with the driving shaft 15 of the elevator. Shaft 11 is also connected by means of belt 16 with the pulley 17 which operates the screw conveyer 5. Tubes 6 and 7 each contain screw conveyers similar to conveyer 5. The conveyer in tubes 6 is connected with conveyer 5 by means of beveled gears 18 and the conveyer in tube 7 is connected with the conveyer in tube 6 by means of beveled gears 19 so that upon rotation of conveyer 5 the others will also be rotated to continue the feed of the fuel through their respective tubes. By this arrangement it will be seen that the coal or other fuel will be continuously taken from the pit 1; elevated to conveyer tube 4 and continuously fed through tubes 4, 6 and 7. Tubes 4 and 7 are mounted respectively over rows of kilns 29 so that by this arrangement a continuous supply of fuel is caused to pass constantly over the kilns.

At intervals, in the bottoms of tubes 4 and 7, openings or passages 20, adapted to be closed by slidable gates 21, are provided. These openings or passages 20 lead to a trap compartment 22 which is provided in its bottom with openings 23 communicating with kiln-supplying chutes 24 and 25. These chutes 24 and 25 lead to hoods 26 and 27 set over and in open communication with the passages 28 which lead to the corresponding kiln 29, there being one set of chutes 24 and for each kiln to be supplied with fuel. Each of the chutes 24 and 25 are provided with a cone shaped valve 30 suspended by a link rod 31 from the lever 32 which is provided with a weight 33 adapted to counter balance the weight of valve 30 and a certain amount of fuel supported thereby. In the top of hoods 26 and 27 are provided peep holes 34 which may be closed by glass or other transparent material. In trap compartment 22 is mounted a slidable rod 35 carrying partitions 36 and which thus divide the trap compartment 22 into a series of separate and individual traps, there being a rod and corresponding partitions 36 in the trap compartment under each of the tubes 4 and 7. At one end the rods 35 arecon nected by a cable 37 passing` over pulleys 3S and at Itheir other ends are connected with cables 39 passing over pulleys 40` and41V and winding upon drums 42 loosely mounted on shaft 43. The shaft 43vis continuously ro tated from shaft 1l by means of beveled gears 44, and carries a clutch 45 spline'd thereto. Both ends of clutch 45 are` provided with' clutch teeth 46 adapted to engage with similar clutch teethr- 47 on the opposingfaces of drums 42. The clutch 45 is opera-- tedj by a lleverarni 43'A having a swivel-"ed con'- neetiontherewith; Leverar1n48 is carried by aroek-ingbeam 49pivot`ally supportedon the hollow stud2r 50-onsupport 51. The hollow stud4 50 is connect-ed by, means of an elbow 527 with a water pipe 53 whichthus continuously supplies; the'interior ofstud 50 with water. Ports 54 areprov-ided invr studpails 56 iszprovid'ed with av stop cock 60th-efA stein ofv which carries a rectangular head 61 taking ina slot 62 in alever 63 pivoted on the lug 64 on bracket 59. A discharge pipe 65 leads fromy stop cock 69 and telescopesinto drain pipe" 6'6". At'y one side of the rock beam 49 is mounted a lever 67 having a catch 68` adapted to-engage under the end of rock beam 49 and hold it inl elevated position as indicated in Fig. 5. connected-by al link 69 with' a lever ZOna-vingaf slot and pin connection with a lever 7`1- carryingI catch 7-2 adapted t'oengage with the other-end of rock beam 49 to hold it; in

elevated position. A; spring 73 is attached to lever'67' and serves to-hold levers 67 and 71 in position to automatically engage the corresponding ends` of rock beam 49 when elevated".y Levers 67 and 71 are operated by means off suitablel clock mechanism carrying a rottable dial 74 provided with pin holes 7 5y adapted to"v receiveV pins 76; The dial- 7 4l is so placed that as it rotates the pin 76'will engagethefupper end of lever 67 to cause the catches" 681er 7Q'to release the end oftlhe'rock. beam149 which may be in= engagement with them.'

By using more or less' of the pins 76 it will. be seen that the numberof operations' of. levers 67 and 71T per revolution of the dia-lV 74 may be regulated as desired. By. this arrangement it will be. 'seen that when the rack beam 49- sin one of its elevated posiL Lever 67 is tionsclutch 45 is shifted to cause operation of one ofthe drums-42 to wind up the corresponding cable 39, the other drum being free to unwind to permit this. This action will cause a corresponding sliding movement of the rods 35 and partitions 36 in trap compartment 22. The parts are so designed and regulatedy that when the desired movement ofthe partitions 36 has been effected, a pin 7 6 on clock dial 74 causes the release of the elevated end of rock` loeanr 49 as explained above; In the" meantime the pipe 55 inf` the elevated endl of rock beam 49* hasbeen dischargingl walter into" the corresponding pailV 56", sof that when the rock beam ist released' the: weight of water inthe pail) 56lwilll cause the beam to rock on its pivot cutting olf! the supplyofi water tothe fulll pail; opening the supply of! water tothe other pail, stopping the winding; operation ofi the` one drun'r andf star-ting the unwindingfY operation ofi the other drinn. rhs the full pail descends the lug 6I operating in lever 63 will cause the stop cock 60 to openA-` and permit the water in saidipail to run into' drain piper66, thus emptying that pail. Simultaneously theV other lever 63 has* caused? lug 61.` to close the corresponding stop cock 60, rock `beam 49 has been` caught inf its elevated position. and thel corresponding pail` is being filled` with water. it thek proper time another pin" 76 causes release of the rockfbeanav 49v andl descent off the ful-lr pail and elevationV of the empty pail thus shifting the clutch 45, re'-` versing the' action of'.` drum 42"n and thus causingthe return of rodA 35 and partitions 36 to their original positions... By this arrangement willl be seen. that the time of. reciprocation's ofjpa-rtitions 36 may be regu.- lated asl desiredi As stated above the partitions 36 form traps inY trap compartments 2'2 adaptedy to receivechar-ges` of fuel from the screw con'- veyers through openings. 20 so that upon eachI movement of the partitions 36 a.. charge ofi fuel will be carried to=one oftheadjacent. sets of kiln -supplying chutes. This fuel passing down through said.r chuteswill accumulate upony the valves 30 until' the weight of the fuel and. the valve' overcome the weight' 33 when. the fuel. will. be discharged: intoA the kiln. By closing the gates 2.1 in every alternate opening 20. each of the sets of kiln-supplying chutes will receive; a charge of coalI upon every. alternate movement of the partitions 36;. In thismanner it willbe seen thev kilnsmay be continuously suppledwith fuel and that the quantity and` timel of such` supply may be regulatedu as desired.

Each of; the cables 39 passes' through a: slotint an arm 7.7" on thepivoted post.. 7 8- and., carries aA stop 7.9 adapted,` to enga-ge;y saidc, arms-77,. when. the. cable. hasibeen sufficiently.-` wound ontozits drumto; cause; the. required.

movement of partitions 36. Each of the posts 78 carries two arms 80' having slotted connections with the pins 81 on the plates S2 which are swiveled to drums 42 as shown in Fig. 6. Springs 88 are imprisoned behind drums 4Q. and serve to hold the drums up to clutching position with clutch 45, stops 84, secured to the framework limiting` this movement of arms 77 and the drums. By this arrangement it will be seen that should the adjustments be not quite correct or should the rock beam 49 for any reason fail to operate at. the proper time to reversethe movement of rods and partitions 36, the stops 79 will engage the arms 77 and automatically throw the active drum 42 out of engagement with the clutch 45 and thus discontinue the movement of the rods and partitions.

Vhile I have illustrated and described the preferred construction for carrying my invention into effect this is capable of modification and variation without departing from the spirit of the invention. I therefore do not wish to be limited to the exact construction set forth but wish to avail myself of such modifications and changes as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

l. The combination with a series of kilns, of conveying apparatus for conducting fuel over the kilns; and time controlled mechanism for periodically delivering a charge of fuel from the conveying apparatus to the kilns, substantially as described.

2. The combination with a series of kilns, of conveying apparatus for conducting fuel over the kilns; chutes leading from the conveying apparatus to the kilns, trap mechanism for delivering fuel from the conveying apparatus to the kiln chutes; and mechanism for periodically operating the trap mechanism, substantially as described.

3. The combination with a series of kilns, of conveying apparatus for conducting fuel over the kilns, chutes leading from the conveying apparatus to the kilns; trap mechanism for delivering fuel from the conveying apparatus to the kiln chutes; and clock controlled mechanism for periodically operating the trap mechanism, substantially as described.

4. The combination with a series of kilns, of conveying apparatus for conducting fuel over the kilns; chutes leading from the conveying apparatus to the kilns; trap mechanism for delivering fuel from the conveying apparatus to the kiln chutes; mechanism for periodically operating the trap mechanism; and weight controlled valves in the kiln chutes, substantially as described.

5. The combination with a series of kilns, of conveying apparatus for conducting fuel over the kilns, chutes leading from the conveying apparatus to the kilns; trap mechanism for delivering fuel from the conveying apparatus to the kiln chutes; clock controlled mechanism for periodically operating the trap mechanism; and weight controlled valves in the kiln chutes, substantially as described.

6. The combination with a series of kilns, of a screw conveyer for conducting fuel over the kilns; a trap compartment located under the conveyer and provided with openings communicating therewith; a series of slidable partitions in said trap compartment, dividing it into separate traps; mechanism for periodically reciprocating said partitions; and kiln supplying chutes adapted to receive the charge from said traps upon reciprocations thereof, substantially as described.

7 The combination with a series of kilns, of a screw conveyer for conducting fuel over the kilns; a trap compartment located under the conveyer and provided with openings communicating therewith; gates for opening or closing said opening; a series of slidable partitions in said trap compartment, dividing it into separate traps; mechanism for periodically reciprocating said partitions; and kiln-supplying chutes adapted to receive the charge from said traps upon reciprocations thereof, substantially as described.

S. The combination with a series of kilns, of a screw conveyer for conducting fuel over the kilns, a trap compartment located under the conveyer and provided with openings communicating therewith; a series of slidable partitions in said trap compartment, dividing it into separate traps, clock controlled mechanism for periodically reciprocating said partitions, and kiln-supplying chutes adapted to receive charge from said traps upon reciprocations thereof, substantially as described.

9. The combination with a series of kilns, of a screw conveyer for conducting fuel over the kilns, a trap compartment located under the conveyer and provided with openings communicating therewith; a series of slidable partitions in said trap compartment, dividing it into separate traps; mechanism for periodically reciprocating said partititons; kilns supplying chutes adapted to receive the charge from said traps upon reciprocation thereof; and weight controlled valves in the kiln-chutes, substantially as described.

l0. The combination with a series of kilns, of a screw conveyer for conducting fuel over the kilns; a trap compartment located under the conveyer and provided with openings communicating therewith; gates for opening or closing said openings; a series of slidable partitions in said trap compartment dividing it into separate traps; clock controlled mechanism for periodically reciprocating said partitions; adapted to receive the charge from. said traps upon reciprocation thereof; and weight controlled valves in the kiln chutes,

substantially as described.

ll.v The combination with aseriesofkilns, of conveying apparatus for conducting fuel over the kilns; chutes leading from the conveying apparatus to the kilns; means for delivering fuel from the conveyor' to the chutes; and weight controlled valves in the chutes, substantially as described.

12. The combinationwith a series of kilns, arranged in two parallelrows, of a screw conveyer passingA over one row in one direction; a screw conveyor passing over the other row in ai direction opposite to that over the first row,` a screw conveyer. connecting the first mentioned conveyors at one end; an elevator adapted to receive fuel and deliver itl to the screw conveyors; trap compartments under the conveyers over the kilns and provided with openings communieating therewith; a series of partitions, in the trap compartments, mounted on slidable rods; clock controlled mechanism for periodically reciprocating said rods; and kilnsupplying chutes communicating with the bottom of the trap compartments between kilns supplying chutesthe conveyer openings, substantially as described.

13. The combination with a series of kilns, arranged in two parallel rows, of a screw conveyer passing over one row in one direction; a screw conveyer passing over the other row in a direction opposite to that over the first row; a screw conveyer connecting the two first mentioned conveyers at one end; an elevator adapted to receive fuel and deliver it to the screw conveyors; trap com'- partments under the conveyers over the kilns and provided with openings-communicating therewith; a` series of partitions, in

the trap compartments, mounted on slidable rods; clock controlled .mechanism for periodically reciprocating said rods; kiln-supplying chutes communicating with the bottom of the trap compartments between the conveyer openings and weight controlled valves in the kiln chutes, substantially as described.

In testimony whereof I have signed my namerto this specification in the presence of two subscribing witnesses'.

RICHARD HOEHNE.

W'itnesses:

JOSHUA R. H. Po'r'rs, ARTHUR A. OLSON; 

